Home / 986,654.34-1,479,722.31-425,564.10

Finding the Fourth Proportional to 986,654.34, 1,479,722.31 and 425,564.10

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Solution

The fourth proportional to 986,654.34, 1,479,722.31 and 425,564.10 is: 638,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,654.34 : 1,479,722.31 = 425,564.10 : x
  2. Step 2: Convert to fraction form
    986,654.34/1,479,722.31 = 425,564.10/x
  3. Step 3: Cross multiply
    986,654.34x = 1,479,722.31 × 425,564.10
  4. Step 4: Simplify right side
    986,654.34x = 629,716,693,105.07
  5. Step 5: Solve for x
    x = 629,716,693,105.07/986,654.34
  6. Step 6: Final answer
    x = 638,234.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.